Power transmitter



May 27', 1924. 1,495,255 Y A. H. DE- VOE POWER TRAN SMITTER ori inal Filed Jun s 14, 1917' 5 Sheets-Sheet 1 INVENTOR ATTORNEY WITNESSES; I

Maiy'27, 1924.

I A. H. DE VOE POWER TRANSMITTER Original Filed Jqn 14 1917 3jsheet-sheet' 5 NEY I ATTOR WITNESSES: I wwxyw Patented May 27, 12241.

UNETE ALBERT H. DE van, or WESTIEIELD, NEW

EAo'rUEINe COMPANY,

JEEsEY.

To all whom it may concern Be it known that I, ALBERT H. citizen of ,the United States, residing at WVestfield, in the county of Union and State of New Jersey, have invented certainnew and useful Improvements in Power Transmitters, of which the following is a specification, reference being had therein to. the accompanying drawings.

This invention relates to power-transmitters for conveniently and positively con-, trolling the operation of small .machines such as sewing machines including the casing or housing for supporting and enclosing the moving elements of such transmitters to prevent the clothes of operatives or the work being caught therein and also to protect said elements from dust and dirt, but at the same time to allow easy access to them to facilitate inspection and repair.

This application is a division of my copending application Serial No. 174,647, filed June 14, 1917.

The invention also consists in certain details of construction which will appear from a detailed description thereof in connection with the accompanying drawings, in which Fig. 1 is a side elevation of a power-bench, showing two machines and transmitters therefor in working relation. Fig. 2 is a longitudinal section of the transmitter casing in a vertical plane through its axis, most of the movable parts enclosed therein being shown in elevation. Fig. 3 is a section at right angles to the axis of the shaft on sub stantially the line 3-3 of Fig. 2 and look ing in the direction of the arrows. Fig. 4 is a rear side elevation of the transmitter casing. Fig. 5 is a cross section showing in'detail a latch which renders a section of the housing or casing conveniently detachable. Fig. 6 is a detail of a preferred form of universal joint for connecting the shaft sections.

As shown in the drawings, on the powerbench 1, sewing machines 2 having beltwheels 3 are supported at intervals allowing operatives suficient freedom from interference with one another. Below the bench transmitters are secured preferably adjacent the bench-legs 4 which are bolted to crossbars 5 suitably secured to batten-plates 6 astened to the bench adjacent the ends of abutting table units of the bench as shown and described in my patentfor power tables, N 0. 1,320,455, dated ()ctoher 28, 1919.

DE VoE, a V

I stares rarer orrics.

JERSEY, assrenon 'ro THESINGER MANU- oE ELIZABETH, NEW JERSEY, A 'ooEroEATIoN OF NEW POWER TRANSMITTER.

Divided and this application filed Apri1"7,

' The vital parts of the transmitter are enclosed within a housing or casing consisting of a cap-plate 7, a main section 8 and a removable vided at each end with an apertured lip 10 receiving the screws 11 for securing it to the table. All-the component parts of the transmitter are carried by this plate. The main section 8 is adjustably secured at opposite ends of the cap-plate 7 by means of two centrally arranged tension bolts 12 fitted to slots 13 in the main section and pairs of thrust screws 14 are tapped into the main section on both sides of the bolts 12 with their ends resting against the cap-plate 7. The removable section 9 is formed with a lip or offset 9 extending under the main section 8 to close the bottom thereof and section 9. The cap-plate 7 is proalso to provide a cup-portion to catch excess oil. lt'is detachably secured to section 8 by a latch 15, see Figs. 2 and 5, pivoted at 16 toa bearing section '18 secured to the main section 8. The latch '15 is U-shaped and its under leg 15 is adapted to'engagea groove 17 in a wing 17 of the removable section. From this groove the latch may be readily disengaged by an extension 15 thereof within convenient reach of the operative at the front of the bench. The beforementioned bearing section 18 is secured to the main section 8 by clamp-screws 19 and is formed with a boss 20 which is adapted to receive the set-screw 21 for securing a bearing or bushing 22 in place. 1

On the bearing sleeve 22 the hub 23 of a driven clutch-member 24 is freelyrotatable, the friction of the end thrust of driving relation being provided against by the ball bearings 25. To the driven clutch-member 24 a belt-wheel 24 is fastened as described in the parent application. A belt 3 leads from this wheel to the pulley 8 on the machines to be driven.

In the bearing sleeve 22 is supported one end of an individual transmitter shaft section 26, the other end of which turns freely in a bearing 27 integral with the main housing section 8, see Fig. 2. The shaft section 26 is connected at opposite ends to the shaft 28 joining the two transmitters by means of universal couplings 29 which permit transmission of the power through shaft sections whose axes are out of parallelism and intersect at an obtuse angle. The driving member 30 is mounted to turn with the shaft 26 butisslidable thereon so that it maybe engaged With and disengaged from the driven member 24: by means of the rocking arm 31 connected with member 30 and having anti-friction rollers 32 cooperating with the resilient cam-members 33 all as fully disclosed in my parent application above mentioned. This rocking arm is operated from a treadle 3d by means of the adjustable connection 35.

Ample lubrication for those portions oi theshatt which are subjected to wear is at"- forded by the wire-rings and Wells shown at 36 and 37 in the bearings 20 and 27 respectively.

Surrounding the universal joint at opposite ends of the transmitter are truncated housings 38 and 39 between which a tubular casing 40 for the shaft section 28 is supported and held against endwise movement by the screws ll.

From the foregoing description it will be clear that the vital parts oi the transmitter are accessible for repair or adjustment by reason of the removable section 9 of the housing and also by reason oi the external location of the inclined (ftUIl tlI'lllS 33. At thesame time the running parts are all enclosed so as to be protected from dirt and to fully protect the operativ from injury.-

Furthermore it will foe-apparent that the universal joints between the shaft sections eliminate the binding and friction losses inevitably concomitant to the use of a continuous line shaft for driving a. plurality ol. machines. Further th operation oi? lining; up the plurality oi transmitters with the construction disclosed requires far less precision than it would with a continuous line of sha'liting enabling it to be done by low grade mechanics.

Having thus set forth the nature of the invention, what I claim herein is-- 1. In a casing for housing and supporting powertransmitters, a power-shaft, a supporting cap-section. a main housing section, a bearing for said shait secured to said main section and a removable housing section detachably secured to said main section and having; an offset lip or cup-portion defining the bottom portion of the casing for catching excess oil.

2. in a pow/enviable. unitary powertransmitter having a shaft, a combined housing and hanger tor said transmitter and shaft having; relatively detachable sections, tension membersarranged to permit bodily lateral. adjustment of the shaft substantially in parallelism with the table, andv thrust-- member's arranged to permit both bodily lateral adjustment of the shaft at right angles to said table and tilting of the shaft into parallelism with the table.

3. In a power-bench, a plurality oi transmitters having driving and driven members, a housing tor said members of the trans mitters transmitter shaft-sections, coupling shaft-sections between said transmitter shattsections, universal joints connecting the several shaft-sections. and a tubular housing for said coupling shaft-section detachably supported by said first-mentioned housing whereby all the rotating parts are enclosed to protect th operative.

4-. in a power-table, a plurality of powertransmitters adapted to be driven from a centrally arranged power-shaft, including individual shaft-sections for each transmitter and intermediate coupling shaft sew tions, and universal joints connecting; the individual and intermediate shaft-sections whereby friction losses from inaccuracies in alinement ol' the transmitters may be diminished.

5. In a casing for housing and supporting power-transn'iitters, a power-shaft, a main housing section open at the side and lower portion thereof. a section secured to one side of said main housing section and having:

bearing for said shaft, a removable housing section secured to said bearing se -tion and closing the open side of the main housing section, said removable housing, section having a lower portion closing the open lower portion of the main section, and means for detachably securing said removable section to said bearing section.

6. In a casing for housing and supporting power-transmitters, a main housing section open at one side and the bottom thereof. a shaft, a removable section secured to the. main housing" section to partially close the side thereot and provided with a bearing for the shaft. and a second removable housin. section adapted to close the bottomof said main section.

In testimony whereof, I have signed my name to this specification.

.eiLBERT H. V011 tit) 

